Nerz studied a large number of league and cup games in England, as well as in Austria and Italy, and sought advice on coaching and tactics from internationally-respected coaches such as Jimmy Hogan, Hugo Meisl and Vittorio Pozzo in a quest to improve the standards of the German national team.
Otto von Bismarck | Otto | Otto III | Otto Piene | Otto I, Holy Roman Emperor | Otto I | Otto Preminger | Otto II | Otto Dix | Otto Natzler | Otto II, Holy Roman Emperor | Otto Binder | Otto Skorzeny | Otto Schenk | Otto of Brunswick | Otto Kerner, Jr. | Otto Steinbrinck | Otto Kerner | Otto IV, Holy Roman Emperor | Otto IV | Otto III, Holy Roman Emperor | Otto Braun | Miranda Otto | Frei Otto | Otto-Werner Mueller | Otto Schmidt | Otto Muehl | Otto Lilienthal | Otto Klemperer | Otto Hermann Kahn |
After a break from 1933 until 1935 – Oßwald assisted Reichstrainer Otto Nerz at the 1934 FIFA World Cup in Italy, and managed FSV Mainz 05 and the Gauauswahl Südwest (South Western XI).